CVE-2025-49706

Description

Microsoft SharePoint contains an improper authentication vulnerability that allows an authorized attacker to perform spoofing over a network. Successfully exploitation could allow an attacker to view sensitive information and make some changes to disclosed information. This vulnerability could be chained with CVE-2025-49704. CVE-2025-53771 is a patch bypass for CVE-2025-49706, and the updates for CVE-2025-53771 include more robust protection than those for CVE-2025-49706.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-49706
• https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog
• https://nvd.nist.gov/vuln/detail/CVE-2025-49706
• https://www.cisa.gov/news-events/alerts/2025/07/20/microsoft-releases-guidance-exploitation-sharepoint-vulnerability-cve-2025-53770
• https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-20552